They’re the famous royal lookalikes making the big bucks, all thanks to their uncanny resemblance to the Duke and Duchess of Cambridge.

In a perfectly timed visit, the couple’s doppelgangers, Gabriella Douglas and Simon Watkinson, are in Australia this week, the very same week that the real deal is in town.

The pair have been flown in to launch Peter Alexander’s new Mother’s Day campaign and were mobbed by shoppers at an in-store Myer appearance in Sydney’s CBD on Wednesday.

Douglas, who impersonates Kate as a part-time occupation, says she fell into the job after the royal wedding in 2011 after being constantly stopped on the street and compared to Middleton.

“A lot of my family had always said I looked like Kate when I was younger…eventually my mom was like ‘you should be earning a bit of extra pocket money,’ so she sent my photos to an agency and they asked me to do an amazing shoot for Grazia in the UK, which turned out to be an eight-page spread and a cover,” the 26-year-old brunette tells news.com.au.

Famous royal lookalikes Gabriella Douglas and Simon Watkinson.News.com.au

“It’s just good fun really, I pick and choose the jobs that I really like and the ones I get to travel with.”

Douglas has been working with Prince William lookalike, Simon Watkinson, for the past three years and said together, the pair manage to fool the public everywhere they go.

“Some people were fooled, some people were curtseying. One lady was crying when she thought she saw William,” Douglas said of her Sydney appearance today.

“Everyone wants a photograph. A lot of the tourists are fooled, they ask: ‘How’s your granny?’”

Growing up in Windsor, Douglas attributes her similar accent to the fact that both she and Kate are from Berkshire and says she had a lot of exposure to the royals as a young girl but never saw herself imitating the daughter-in-law of the Queen.

“I actually met Prince William when I was younger, I had piano lessons at Eton College [where William went to school], and he held the door open for me one day.”